Group (n = 52)

Vd (cm/s)

Vs (cm/s)

Vm (cm/s)

Adverse group (n = 21)

26.1 ± 15.4

74.8 ± 27.8

42.9 ± 18.1

the good prognosis group (n = 31)

43.5 ± 30.1*

112.1 ± 44.3*

70.1 ± 34.0*

t value

3.520

3.657

3.842

P value

0.002

0.000

0.000